wear sunglasses that block harmful ultraviolet (uv) rays. also, a hat with a brim will reduce the amount of uv radiation slipping around the side of your sunglasses. at the computer after two hours of staring at a computer screen, you can end up with the same kind of repetitive stress in your eye muscles...
to protect your eyes from harmful ultraviolet (uv) light, choose sunglasses with both uva and uvb protection. also, wearing a hat with a brim will greatly reduce the amount of uv radiation slipping around the side of your sunglasses. pregnancy and vision some women experience changes in their eyesight...